Ovoid, semipapillate sporangia showing sympodial development of sporangiophore
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P. pseudosyringae sporangia  |
P. cambivora disease symptoms  Ink disease impact in sweet chestnut forest in Italy |
P. tentaculata sporangium  Papillate sporangium of P. tentaculata |
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Necrotic lesion in phloem caused by P. austrocedrae  Necrotic lesion in phloem with resin pocket caused by P. austrocedrae |
P. cryptogea sporangium  Obpyriform non-papillate sporangia in water |
P. tentaculata chlamydospore  P. tentaculata chlamydospore with short hyphal projection |
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P. siskiyouensis canker on Italian alder  Bleeding canker at the base of a tree and a sprinkler emitter (arrow) adjacent to the trunk |
P. cactorum sporangia  P. cactorum sporangia |
P. alni subsp alni sporangium  Non-papillate, non caducous sporangium, photo used with permission from Q-bank |
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P. nemorosa colony morphology on PDA  Colony morphology on PDA at 14 days |
P. ramorum leaf symptoms on tan oak  Tip symptoms on tanoak seedling (Notholithocarpus densiflorus). |
P. agathidicia oogonia  P. agathidicida oogonia with SEM (top) and light microscopy (bottom) |